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Finding the Fourth Proportional to 230,445, 318,014.28 and 124,461

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Solution

The fourth proportional to 230,445, 318,014.28 and 124,461 is: 171,756.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,445 : 318,014.28 = 124,461 : x
  2. Step 2: Convert to fraction form
    230,445/318,014.28 = 124,461/x
  3. Step 3: Cross multiply
    230,445x = 318,014.28 × 124,461
  4. Step 4: Simplify right side
    230,445x = 39,580,375,303.08
  5. Step 5: Solve for x
    x = 39,580,375,303.08/230,445
  6. Step 6: Final answer
    x = 171,756.28

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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.