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Finding the Fourth Proportional to 342,444.70, 513,657.45 and 155,455.90

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Solution

The fourth proportional to 342,444.70, 513,657.45 and 155,455.90 is: 233,179.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,444.70 : 513,657.45 = 155,455.90 : x
  2. Step 2: Convert to fraction form
    342,444.70/513,657.45 = 155,455.90/x
  3. Step 3: Cross multiply
    342,444.70x = 513,657.45 × 155,455.90
  4. Step 4: Simplify right side
    342,444.70x = 79,851,081,181.46
  5. Step 5: Solve for x
    x = 79,851,081,181.46/342,444.70
  6. Step 6: Final answer
    x = 233,179.49

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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.