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Finding the Fourth Proportional to 239,792.10, 330,709.95 and 144,280.98

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Solution

The fourth proportional to 239,792.10, 330,709.95 and 144,280.98 is: 198,985.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,792.10 : 330,709.95 = 144,280.98 : x
  2. Step 2: Convert to fraction form
    239,792.10/330,709.95 = 144,280.98/x
  3. Step 3: Cross multiply
    239,792.10x = 330,709.95 × 144,280.98
  4. Step 4: Simplify right side
    239,792.10x = 47,715,155,681.75
  5. Step 5: Solve for x
    x = 47,715,155,681.75/239,792.10
  6. Step 6: Final answer
    x = 198,985.52

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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.