Home / 307,150.51-424,034.99-212,168.29

Finding the Fourth Proportional to 307,150.51, 424,034.99 and 212,168.29

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Solution

The fourth proportional to 307,150.51, 424,034.99 and 212,168.29 is: 292,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,150.51 : 424,034.99 = 212,168.29 : x
  2. Step 2: Convert to fraction form
    307,150.51/424,034.99 = 212,168.29/x
  3. Step 3: Cross multiply
    307,150.51x = 424,034.99 × 212,168.29
  4. Step 4: Simplify right side
    307,150.51x = 89,966,778,728.47
  5. Step 5: Solve for x
    x = 89,966,778,728.47/307,150.51
  6. Step 6: Final answer
    x = 292,907.80

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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.