Home / 258,280.47-387,424.60-98,365.25

Finding the Fourth Proportional to 258,280.47, 387,424.60 and 98,365.25

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Solution

The fourth proportional to 258,280.47, 387,424.60 and 98,365.25 is: 147,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,280.47 : 387,424.60 = 98,365.25 : x
  2. Step 2: Convert to fraction form
    258,280.47/387,424.60 = 98,365.25/x
  3. Step 3: Cross multiply
    258,280.47x = 387,424.60 × 98,365.25
  4. Step 4: Simplify right side
    258,280.47x = 38,109,115,206.20
  5. Step 5: Solve for x
    x = 38,109,115,206.20/258,280.47
  6. Step 6: Final answer
    x = 147,549.35

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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.