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Finding the Fourth Proportional to 282,881.98, 390,387.72 and 169,682.86

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Solution

The fourth proportional to 282,881.98, 390,387.72 and 169,682.86 is: 234,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,881.98 : 390,387.72 = 169,682.86 : x
  2. Step 2: Convert to fraction form
    282,881.98/390,387.72 = 169,682.86/x
  3. Step 3: Cross multiply
    282,881.98x = 390,387.72 × 169,682.86
  4. Step 4: Simplify right side
    282,881.98x = 66,242,104,838.48
  5. Step 5: Solve for x
    x = 66,242,104,838.48/282,881.98
  6. Step 6: Final answer
    x = 234,168.70

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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.