Home / 257,030.16-385,316.34-122,010.91

Finding the Fourth Proportional to 257,030.16, 385,316.34 and 122,010.91

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Solution

The fourth proportional to 257,030.16, 385,316.34 and 122,010.91 is: 182,907.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,030.16 : 385,316.34 = 122,010.91 : x
  2. Step 2: Convert to fraction form
    257,030.16/385,316.34 = 122,010.91/x
  3. Step 3: Cross multiply
    257,030.16x = 385,316.34 × 122,010.91
  4. Step 4: Simplify right side
    257,030.16x = 47,012,796,546.75
  5. Step 5: Solve for x
    x = 47,012,796,546.75/257,030.16
  6. Step 6: Final answer
    x = 182,907.70

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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.