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Finding the Fourth Proportional to 540,803.41, 811,143.14 and 141,482.72

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Solution

The fourth proportional to 540,803.41, 811,143.14 and 141,482.72 is: 212,207.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,803.41 : 811,143.14 = 141,482.72 : x
  2. Step 2: Convert to fraction form
    540,803.41/811,143.14 = 141,482.72/x
  3. Step 3: Cross multiply
    540,803.41x = 811,143.14 × 141,482.72
  4. Step 4: Simplify right side
    540,803.41x = 114,762,737,756.54
  5. Step 5: Solve for x
    x = 114,762,737,756.54/540,803.41
  6. Step 6: Final answer
    x = 212,207.87

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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.