Home / 260,328.29-390,501.02-89,548.28

Finding the Fourth Proportional to 260,328.29, 390,501.02 and 89,548.28

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Solution

The fourth proportional to 260,328.29, 390,501.02 and 89,548.28 is: 134,325.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,328.29 : 390,501.02 = 89,548.28 : x
  2. Step 2: Convert to fraction form
    260,328.29/390,501.02 = 89,548.28/x
  3. Step 3: Cross multiply
    260,328.29x = 390,501.02 × 89,548.28
  4. Step 4: Simplify right side
    260,328.29x = 34,968,693,743.38
  5. Step 5: Solve for x
    x = 34,968,693,743.38/260,328.29
  6. Step 6: Final answer
    x = 134,325.37

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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.