Home / 319,975.02-479,962.56-83,317.02

Finding the Fourth Proportional to 319,975.02, 479,962.56 and 83,317.02

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Solution

The fourth proportional to 319,975.02, 479,962.56 and 83,317.02 is: 124,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,975.02 : 479,962.56 = 83,317.02 : x
  2. Step 2: Convert to fraction form
    319,975.02/479,962.56 = 83,317.02/x
  3. Step 3: Cross multiply
    319,975.02x = 479,962.56 × 83,317.02
  4. Step 4: Simplify right side
    319,975.02x = 39,989,050,210.77
  5. Step 5: Solve for x
    x = 39,989,050,210.77/319,975.02
  6. Step 6: Final answer
    x = 124,975.54

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.