Home / 312,888.02-431,758.77-176,915.30

Finding the Fourth Proportional to 312,888.02, 431,758.77 and 176,915.30

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Solution

The fourth proportional to 312,888.02, 431,758.77 and 176,915.30 is: 244,128.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,888.02 : 431,758.77 = 176,915.30 : x
  2. Step 2: Convert to fraction form
    312,888.02/431,758.77 = 176,915.30/x
  3. Step 3: Cross multiply
    312,888.02x = 431,758.77 × 176,915.30
  4. Step 4: Simplify right side
    312,888.02x = 76,384,732,322.18
  5. Step 5: Solve for x
    x = 76,384,732,322.18/312,888.02
  6. Step 6: Final answer
    x = 244,128.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.