Home / 470,972.79-649,947.06-256,117.50

Finding the Fourth Proportional to 470,972.79, 649,947.06 and 256,117.50

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Solution

The fourth proportional to 470,972.79, 649,947.06 and 256,117.50 is: 353,444.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,972.79 : 649,947.06 = 256,117.50 : x
  2. Step 2: Convert to fraction form
    470,972.79/649,947.06 = 256,117.50/x
  3. Step 3: Cross multiply
    470,972.79x = 649,947.06 × 256,117.50
  4. Step 4: Simplify right side
    470,972.79x = 166,462,816,139.55
  5. Step 5: Solve for x
    x = 166,462,816,139.55/470,972.79
  6. Step 6: Final answer
    x = 353,444.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.