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Finding the Fourth Proportional to 242,838.72, 334,929.02 and 215,643.42

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Solution

The fourth proportional to 242,838.72, 334,929.02 and 215,643.42 is: 297,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,838.72 : 334,929.02 = 215,643.42 : x
  2. Step 2: Convert to fraction form
    242,838.72/334,929.02 = 215,643.42/x
  3. Step 3: Cross multiply
    242,838.72x = 334,929.02 × 215,643.42
  4. Step 4: Simplify right side
    242,838.72x = 72,225,238,251.83
  5. Step 5: Solve for x
    x = 72,225,238,251.83/242,838.72
  6. Step 6: Final answer
    x = 297,420.60

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1.5x scale

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.