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Finding the Fourth Proportional to 480,146.20, 719,271.60 and 243,658.60

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Solution

The fourth proportional to 480,146.20, 719,271.60 and 243,658.60 is: 365,006.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,146.20 : 719,271.60 = 243,658.60 : x
  2. Step 2: Convert to fraction form
    480,146.20/719,271.60 = 243,658.60/x
  3. Step 3: Cross multiply
    480,146.20x = 719,271.60 × 243,658.60
  4. Step 4: Simplify right side
    480,146.20x = 175,256,711,075.76
  5. Step 5: Solve for x
    x = 175,256,711,075.76/480,146.20
  6. Step 6: Final answer
    x = 365,006.97

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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.