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Finding the Fourth Proportional to 356,856.93, 535,115.88 and 207,143.10

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Solution

The fourth proportional to 356,856.93, 535,115.88 and 207,143.10 is: 310,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,856.93 : 535,115.88 = 207,143.10 : x
  2. Step 2: Convert to fraction form
    356,856.93/535,115.88 = 207,143.10/x
  3. Step 3: Cross multiply
    356,856.93x = 535,115.88 × 207,143.10
  4. Step 4: Simplify right side
    356,856.93x = 110,845,562,242.43
  5. Step 5: Solve for x
    x = 110,845,562,242.43/356,856.93
  6. Step 6: Final answer
    x = 310,616.25

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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.