Home / 257,461.40-385,689.34-122,333.16

Finding the Fourth Proportional to 257,461.40, 385,689.34 and 122,333.16

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Solution

The fourth proportional to 257,461.40, 385,689.34 and 122,333.16 is: 183,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,461.40 : 385,689.34 = 122,333.16 : x
  2. Step 2: Convert to fraction form
    257,461.40/385,689.34 = 122,333.16/x
  3. Step 3: Cross multiply
    257,461.40x = 385,689.34 × 122,333.16
  4. Step 4: Simplify right side
    257,461.40x = 47,182,595,740.51
  5. Step 5: Solve for x
    x = 47,182,595,740.51/257,461.40
  6. Step 6: Final answer
    x = 183,260.85

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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.