Home / 218,931.02-302,055.87-172,845.47

Finding the Fourth Proportional to 218,931.02, 302,055.87 and 172,845.47

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Solution

The fourth proportional to 218,931.02, 302,055.87 and 172,845.47 is: 238,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,931.02 : 302,055.87 = 172,845.47 : x
  2. Step 2: Convert to fraction form
    218,931.02/302,055.87 = 172,845.47/x
  3. Step 3: Cross multiply
    218,931.02x = 302,055.87 × 172,845.47
  4. Step 4: Simplify right side
    218,931.02x = 52,208,987,306.13
  5. Step 5: Solve for x
    x = 52,208,987,306.13/218,931.02
  6. Step 6: Final answer
    x = 238,472.32

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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.