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Finding the Fourth Proportional to 155,312.32, 232,968.80 and 42,992.86

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Solution

The fourth proportional to 155,312.32, 232,968.80 and 42,992.86 is: 64,489.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,312.32 : 232,968.80 = 42,992.86 : x
  2. Step 2: Convert to fraction form
    155,312.32/232,968.80 = 42,992.86/x
  3. Step 3: Cross multiply
    155,312.32x = 232,968.80 × 42,992.86
  4. Step 4: Simplify right side
    155,312.32x = 10,015,995,002.77
  5. Step 5: Solve for x
    x = 10,015,995,002.77/155,312.32
  6. Step 6: Final answer
    x = 64,489.38

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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.