Home / 390,271.13-585,473.44-134,091.42

Finding the Fourth Proportional to 390,271.13, 585,473.44 and 134,091.42

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Solution

The fourth proportional to 390,271.13, 585,473.44 and 134,091.42 is: 201,160.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,271.13 : 585,473.44 = 134,091.42 : x
  2. Step 2: Convert to fraction form
    390,271.13/585,473.44 = 134,091.42/x
  3. Step 3: Cross multiply
    390,271.13x = 585,473.44 × 134,091.42
  4. Step 4: Simplify right side
    390,271.13x = 78,506,962,349.75
  5. Step 5: Solve for x
    x = 78,506,962,349.75/390,271.13
  6. Step 6: Final answer
    x = 201,160.06

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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.