Home / 317,705.12-438,436.10-174,468.16

Finding the Fourth Proportional to 317,705.12, 438,436.10 and 174,468.16

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Solution

The fourth proportional to 317,705.12, 438,436.10 and 174,468.16 is: 240,767.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,705.12 : 438,436.10 = 174,468.16 : x
  2. Step 2: Convert to fraction form
    317,705.12/438,436.10 = 174,468.16/x
  3. Step 3: Cross multiply
    317,705.12x = 438,436.10 × 174,468.16
  4. Step 4: Simplify right side
    317,705.12x = 76,493,139,644.58
  5. Step 5: Solve for x
    x = 76,493,139,644.58/317,705.12
  6. Step 6: Final answer
    x = 240,767.73

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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.