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Finding the Fourth Proportional to 152,263.78, 210,118.62 and 84,280.90

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Solution

The fourth proportional to 152,263.78, 210,118.62 and 84,280.90 is: 116,304.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,263.78 : 210,118.62 = 84,280.90 : x
  2. Step 2: Convert to fraction form
    152,263.78/210,118.62 = 84,280.90/x
  3. Step 3: Cross multiply
    152,263.78x = 210,118.62 × 84,280.90
  4. Step 4: Simplify right side
    152,263.78x = 17,708,986,400.36
  5. Step 5: Solve for x
    x = 17,708,986,400.36/152,263.78
  6. Step 6: Final answer
    x = 116,304.65

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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.