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Finding the Fourth Proportional to 310,018.20, 465,027.30 and 99,677.40

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Solution

The fourth proportional to 310,018.20, 465,027.30 and 99,677.40 is: 149,516.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,018.20 : 465,027.30 = 99,677.40 : x
  2. Step 2: Convert to fraction form
    310,018.20/465,027.30 = 99,677.40/x
  3. Step 3: Cross multiply
    310,018.20x = 465,027.30 × 99,677.40
  4. Step 4: Simplify right side
    310,018.20x = 46,352,712,193.02
  5. Step 5: Solve for x
    x = 46,352,712,193.02/310,018.20
  6. Step 6: Final answer
    x = 149,516.10

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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.