Home / 348,030.90-521,625.15-147,931.20

Finding the Fourth Proportional to 348,030.90, 521,625.15 and 147,931.20

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Solution

The fourth proportional to 348,030.90, 521,625.15 and 147,931.20 is: 221,717.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,030.90 : 521,625.15 = 147,931.20 : x
  2. Step 2: Convert to fraction form
    348,030.90/521,625.15 = 147,931.20/x
  3. Step 3: Cross multiply
    348,030.90x = 521,625.15 × 147,931.20
  4. Step 4: Simplify right side
    348,030.90x = 77,164,634,389.68
  5. Step 5: Solve for x
    x = 77,164,634,389.68/348,030.90
  6. Step 6: Final answer
    x = 221,717.77

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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.