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Finding the Fourth Proportional to 440,680.50, 608,143.95 and 239,476.50

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Solution

The fourth proportional to 440,680.50, 608,143.95 and 239,476.50 is: 330,480.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,680.50 : 608,143.95 = 239,476.50 : x
  2. Step 2: Convert to fraction form
    440,680.50/608,143.95 = 239,476.50/x
  3. Step 3: Cross multiply
    440,680.50x = 608,143.95 × 239,476.50
  4. Step 4: Simplify right side
    440,680.50x = 145,636,184,642.18
  5. Step 5: Solve for x
    x = 145,636,184,642.18/440,680.50
  6. Step 6: Final answer
    x = 330,480.21

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1.5x scale

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.