Home / 390,352.05-585,528.27-109,869.30

Finding the Fourth Proportional to 390,352.05, 585,528.27 and 109,869.30

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Solution

The fourth proportional to 390,352.05, 585,528.27 and 109,869.30 is: 164,804.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,352.05 : 585,528.27 = 109,869.30 : x
  2. Step 2: Convert to fraction form
    390,352.05/585,528.27 = 109,869.30/x
  3. Step 3: Cross multiply
    390,352.05x = 585,528.27 × 109,869.30
  4. Step 4: Simplify right side
    390,352.05x = 64,331,581,155.11
  5. Step 5: Solve for x
    x = 64,331,581,155.11/390,352.05
  6. Step 6: Final answer
    x = 164,804.00

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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.