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Finding the Fourth Proportional to 152,400.88, 210,310.99 and 84,417.63

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Solution

The fourth proportional to 152,400.88, 210,310.99 and 84,417.63 is: 116,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,400.88 : 210,310.99 = 84,417.63 : x
  2. Step 2: Convert to fraction form
    152,400.88/210,310.99 = 84,417.63/x
  3. Step 3: Cross multiply
    152,400.88x = 210,310.99 × 84,417.63
  4. Step 4: Simplify right side
    152,400.88x = 17,753,955,338.75
  5. Step 5: Solve for x
    x = 17,753,955,338.75/152,400.88
  6. Step 6: Final answer
    x = 116,495.10

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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.