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Finding the Fourth Proportional to 258,856.70, 357,152.51 and 151,453.13

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Solution

The fourth proportional to 258,856.70, 357,152.51 and 151,453.13 is: 208,964.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,856.70 : 357,152.51 = 151,453.13 : x
  2. Step 2: Convert to fraction form
    258,856.70/357,152.51 = 151,453.13/x
  3. Step 3: Cross multiply
    258,856.70x = 357,152.51 × 151,453.13
  4. Step 4: Simplify right side
    258,856.70x = 54,091,864,769.59
  5. Step 5: Solve for x
    x = 54,091,864,769.59/258,856.70
  6. Step 6: Final answer
    x = 208,964.51

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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.