Home / 317,178.80-437,685-173,909.12

Finding the Fourth Proportional to 317,178.80, 437,685 and 173,909.12

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Solution

The fourth proportional to 317,178.80, 437,685 and 173,909.12 is: 239,982.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,178.80 : 437,685 = 173,909.12 : x
  2. Step 2: Convert to fraction form
    317,178.80/437,685 = 173,909.12/x
  3. Step 3: Cross multiply
    317,178.80x = 437,685 × 173,909.12
  4. Step 4: Simplify right side
    317,178.80x = 76,117,413,187.20
  5. Step 5: Solve for x
    x = 76,117,413,187.20/317,178.80
  6. Step 6: Final answer
    x = 239,982.66

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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.