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Finding the Fourth Proportional to 259,445.54, 357,898.59 and 211,101.50

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Solution

The fourth proportional to 259,445.54, 357,898.59 and 211,101.50 is: 291,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,445.54 : 357,898.59 = 211,101.50 : x
  2. Step 2: Convert to fraction form
    259,445.54/357,898.59 = 211,101.50/x
  3. Step 3: Cross multiply
    259,445.54x = 357,898.59 × 211,101.50
  4. Step 4: Simplify right side
    259,445.54x = 75,552,927,407.39
  5. Step 5: Solve for x
    x = 75,552,927,407.39/259,445.54
  6. Step 6: Final answer
    x = 291,209.20

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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.