Home / 231,931.20-347,929.20-98,810.40

Finding the Fourth Proportional to 231,931.20, 347,929.20 and 98,810.40

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Solution

The fourth proportional to 231,931.20, 347,929.20 and 98,810.40 is: 148,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,931.20 : 347,929.20 = 98,810.40 : x
  2. Step 2: Convert to fraction form
    231,931.20/347,929.20 = 98,810.40/x
  3. Step 3: Cross multiply
    231,931.20x = 347,929.20 × 98,810.40
  4. Step 4: Simplify right side
    231,931.20x = 34,379,023,423.68
  5. Step 5: Solve for x
    x = 34,379,023,423.68/231,931.20
  6. Step 6: Final answer
    x = 148,229.40

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1.5x scale

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.