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Finding the Fourth Proportional to 242,363.68, 334,475.12 and 134,931.35

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Solution

The fourth proportional to 242,363.68, 334,475.12 and 134,931.35 is: 186,212.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,363.68 : 334,475.12 = 134,931.35 : x
  2. Step 2: Convert to fraction form
    242,363.68/334,475.12 = 134,931.35/x
  3. Step 3: Cross multiply
    242,363.68x = 334,475.12 × 134,931.35
  4. Step 4: Simplify right side
    242,363.68x = 45,131,180,656.53
  5. Step 5: Solve for x
    x = 45,131,180,656.53/242,363.68
  6. Step 6: Final answer
    x = 186,212.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.