Home / 258,316.68-387,464.22-89,875.11

Finding the Fourth Proportional to 258,316.68, 387,464.22 and 89,875.11

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Solution

The fourth proportional to 258,316.68, 387,464.22 and 89,875.11 is: 134,808.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,316.68 : 387,464.22 = 89,875.11 : x
  2. Step 2: Convert to fraction form
    258,316.68/387,464.22 = 89,875.11/x
  3. Step 3: Cross multiply
    258,316.68x = 387,464.22 × 89,875.11
  4. Step 4: Simplify right side
    258,316.68x = 34,823,389,393.56
  5. Step 5: Solve for x
    x = 34,823,389,393.56/258,316.68
  6. Step 6: Final answer
    x = 134,808.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.