Home / 316,011.12-435,835.53-225,338.10

Finding the Fourth Proportional to 316,011.12, 435,835.53 and 225,338.10

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Solution

The fourth proportional to 316,011.12, 435,835.53 and 225,338.10 is: 310,781.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,011.12 : 435,835.53 = 225,338.10 : x
  2. Step 2: Convert to fraction form
    316,011.12/435,835.53 = 225,338.10/x
  3. Step 3: Cross multiply
    316,011.12x = 435,835.53 × 225,338.10
  4. Step 4: Simplify right side
    316,011.12x = 98,210,350,242.69
  5. Step 5: Solve for x
    x = 98,210,350,242.69/316,011.12
  6. Step 6: Final answer
    x = 310,781.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.