Home / 358,729.20-537,899.40-148,129.20

Finding the Fourth Proportional to 358,729.20, 537,899.40 and 148,129.20

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Solution

The fourth proportional to 358,729.20, 537,899.40 and 148,129.20 is: 222,113.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,729.20 : 537,899.40 = 148,129.20 : x
  2. Step 2: Convert to fraction form
    358,729.20/537,899.40 = 148,129.20/x
  3. Step 3: Cross multiply
    358,729.20x = 537,899.40 × 148,129.20
  4. Step 4: Simplify right side
    358,729.20x = 79,678,607,802.48
  5. Step 5: Solve for x
    x = 79,678,607,802.48/358,729.20
  6. Step 6: Final answer
    x = 222,113.53

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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.