Home / 371,918.76-513,228.20-210,775.74

Finding the Fourth Proportional to 371,918.76, 513,228.20 and 210,775.74

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Solution

The fourth proportional to 371,918.76, 513,228.20 and 210,775.74 is: 290,859.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,918.76 : 513,228.20 = 210,775.74 : x
  2. Step 2: Convert to fraction form
    371,918.76/513,228.20 = 210,775.74/x
  3. Step 3: Cross multiply
    371,918.76x = 513,228.20 × 210,775.74
  4. Step 4: Simplify right side
    371,918.76x = 108,176,053,643.87
  5. Step 5: Solve for x
    x = 108,176,053,643.87/371,918.76
  6. Step 6: Final answer
    x = 290,859.36

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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.