Home / 348,031.40-521,625.90-147,931.70

Finding the Fourth Proportional to 348,031.40, 521,625.90 and 147,931.70

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Solution

The fourth proportional to 348,031.40, 521,625.90 and 147,931.70 is: 221,718.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,031.40 : 521,625.90 = 147,931.70 : x
  2. Step 2: Convert to fraction form
    348,031.40/521,625.90 = 147,931.70/x
  3. Step 3: Cross multiply
    348,031.40x = 521,625.90 × 147,931.70
  4. Step 4: Simplify right side
    348,031.40x = 77,165,006,151.03
  5. Step 5: Solve for x
    x = 77,165,006,151.03/348,031.40
  6. Step 6: Final answer
    x = 221,718.52

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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.