Home / 472,756.10-709,231.35-157,439.30

Finding the Fourth Proportional to 472,756.10, 709,231.35 and 157,439.30

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Solution

The fourth proportional to 472,756.10, 709,231.35 and 157,439.30 is: 236,191.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,756.10 : 709,231.35 = 157,439.30 : x
  2. Step 2: Convert to fraction form
    472,756.10/709,231.35 = 157,439.30/x
  3. Step 3: Cross multiply
    472,756.10x = 709,231.35 × 157,439.30
  4. Step 4: Simplify right side
    472,756.10x = 111,660,887,282.06
  5. Step 5: Solve for x
    x = 111,660,887,282.06/472,756.10
  6. Step 6: Final answer
    x = 236,191.32

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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.