Home / 390,766.81-586,068.19-110,218.45

Finding the Fourth Proportional to 390,766.81, 586,068.19 and 110,218.45

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Solution

The fourth proportional to 390,766.81, 586,068.19 and 110,218.45 is: 165,304.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,766.81 : 586,068.19 = 110,218.45 : x
  2. Step 2: Convert to fraction form
    390,766.81/586,068.19 = 110,218.45/x
  3. Step 3: Cross multiply
    390,766.81x = 586,068.19 × 110,218.45
  4. Step 4: Simplify right side
    390,766.81x = 64,595,527,496.11
  5. Step 5: Solve for x
    x = 64,595,527,496.11/390,766.81
  6. Step 6: Final answer
    x = 165,304.54

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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.