Home / 390,943.92-586,417.32-166,272.24

Finding the Fourth Proportional to 390,943.92, 586,417.32 and 166,272.24

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Solution

The fourth proportional to 390,943.92, 586,417.32 and 166,272.24 is: 249,408.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,943.92 : 586,417.32 = 166,272.24 : x
  2. Step 2: Convert to fraction form
    390,943.92/586,417.32 = 166,272.24/x
  3. Step 3: Cross multiply
    390,943.92x = 586,417.32 × 166,272.24
  4. Step 4: Simplify right side
    390,943.92x = 97,504,921,371.20
  5. Step 5: Solve for x
    x = 97,504,921,371.20/390,943.92
  6. Step 6: Final answer
    x = 249,408.97

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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.