Home / 319,784.70-479,547.45-109,314.30

Finding the Fourth Proportional to 319,784.70, 479,547.45 and 109,314.30

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Solution

The fourth proportional to 319,784.70, 479,547.45 and 109,314.30 is: 163,927.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,784.70 : 479,547.45 = 109,314.30 : x
  2. Step 2: Convert to fraction form
    319,784.70/479,547.45 = 109,314.30/x
  3. Step 3: Cross multiply
    319,784.70x = 479,547.45 × 109,314.30
  4. Step 4: Simplify right side
    319,784.70x = 52,421,393,813.54
  5. Step 5: Solve for x
    x = 52,421,393,813.54/319,784.70
  6. Step 6: Final answer
    x = 163,927.15

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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.