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Finding the Fourth Proportional to 145,607.26, 218,410.80 and 40,426.20

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Solution

The fourth proportional to 145,607.26, 218,410.80 and 40,426.20 is: 60,639.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,607.26 : 218,410.80 = 40,426.20 : x
  2. Step 2: Convert to fraction form
    145,607.26/218,410.80 = 40,426.20/x
  3. Step 3: Cross multiply
    145,607.26x = 218,410.80 × 40,426.20
  4. Step 4: Simplify right side
    145,607.26x = 8,829,518,682.96
  5. Step 5: Solve for x
    x = 8,829,518,682.96/145,607.26
  6. Step 6: Final answer
    x = 60,639.28

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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.