Home / 253,565.04-349,920.36-137,279.76

Finding the Fourth Proportional to 253,565.04, 349,920.36 and 137,279.76

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Solution

The fourth proportional to 253,565.04, 349,920.36 and 137,279.76 is: 189,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,565.04 : 349,920.36 = 137,279.76 : x
  2. Step 2: Convert to fraction form
    253,565.04/349,920.36 = 137,279.76/x
  3. Step 3: Cross multiply
    253,565.04x = 349,920.36 × 137,279.76
  4. Step 4: Simplify right side
    253,565.04x = 48,036,983,039.91
  5. Step 5: Solve for x
    x = 48,036,983,039.91/253,565.04
  6. Step 6: Final answer
    x = 189,446.40

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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.