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Finding the Fourth Proportional to 282,422.80, 423,500.55 and 164,130.40

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Solution

The fourth proportional to 282,422.80, 423,500.55 and 164,130.40 is: 246,117.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,422.80 : 423,500.55 = 164,130.40 : x
  2. Step 2: Convert to fraction form
    282,422.80/423,500.55 = 164,130.40/x
  3. Step 3: Cross multiply
    282,422.80x = 423,500.55 × 164,130.40
  4. Step 4: Simplify right side
    282,422.80x = 69,509,314,671.72
  5. Step 5: Solve for x
    x = 69,509,314,671.72/282,422.80
  6. Step 6: Final answer
    x = 246,117.93

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1.5x scale

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.