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Finding the Fourth Proportional to 259,501.60, 358,114.80 and 152,135.20

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Solution

The fourth proportional to 259,501.60, 358,114.80 and 152,135.20 is: 209,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,501.60 : 358,114.80 = 152,135.20 : x
  2. Step 2: Convert to fraction form
    259,501.60/358,114.80 = 152,135.20/x
  3. Step 3: Cross multiply
    259,501.60x = 358,114.80 × 152,135.20
  4. Step 4: Simplify right side
    259,501.60x = 54,481,866,720.96
  5. Step 5: Solve for x
    x = 54,481,866,720.96/259,501.60
  6. Step 6: Final answer
    x = 209,948.10

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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.