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Finding the Fourth Proportional to 317,036.80, 475,554.56 and 77,148.80

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Solution

The fourth proportional to 317,036.80, 475,554.56 and 77,148.80 is: 115,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,036.80 : 475,554.56 = 77,148.80 : x
  2. Step 2: Convert to fraction form
    317,036.80/475,554.56 = 77,148.80/x
  3. Step 3: Cross multiply
    317,036.80x = 475,554.56 × 77,148.80
  4. Step 4: Simplify right side
    317,036.80x = 36,688,463,638.53
  5. Step 5: Solve for x
    x = 36,688,463,638.53/317,036.80
  6. Step 6: Final answer
    x = 115,723.04

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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.