Home / 316,186.74-436,332.02-172,945.53

Finding the Fourth Proportional to 316,186.74, 436,332.02 and 172,945.53

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Solution

The fourth proportional to 316,186.74, 436,332.02 and 172,945.53 is: 238,661.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,186.74 : 436,332.02 = 172,945.53 : x
  2. Step 2: Convert to fraction form
    316,186.74/436,332.02 = 172,945.53/x
  3. Step 3: Cross multiply
    316,186.74x = 436,332.02 × 172,945.53
  4. Step 4: Simplify right side
    316,186.74x = 75,461,671,590.14
  5. Step 5: Solve for x
    x = 75,461,671,590.14/316,186.74
  6. Step 6: Final answer
    x = 238,661.72

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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.