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Finding the Fourth Proportional to 310,023.70, 465,035.55 and 308,055.40

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Solution

The fourth proportional to 310,023.70, 465,035.55 and 308,055.40 is: 462,083.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,023.70 : 465,035.55 = 308,055.40 : x
  2. Step 2: Convert to fraction form
    310,023.70/465,035.55 = 308,055.40/x
  3. Step 3: Cross multiply
    310,023.70x = 465,035.55 × 308,055.40
  4. Step 4: Simplify right side
    310,023.70x = 143,256,712,369.47
  5. Step 5: Solve for x
    x = 143,256,712,369.47/310,023.70
  6. Step 6: Final answer
    x = 462,083.10

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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.