Home / 371,821.12-513,116.35-202,055.24

Finding the Fourth Proportional to 371,821.12, 513,116.35 and 202,055.24

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Solution

The fourth proportional to 371,821.12, 513,116.35 and 202,055.24 is: 278,837.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,821.12 : 513,116.35 = 202,055.24 : x
  2. Step 2: Convert to fraction form
    371,821.12/513,116.35 = 202,055.24/x
  3. Step 3: Cross multiply
    371,821.12x = 513,116.35 × 202,055.24
  4. Step 4: Simplify right side
    371,821.12x = 103,677,848,024.83
  5. Step 5: Solve for x
    x = 103,677,848,024.83/371,821.12
  6. Step 6: Final answer
    x = 278,837.98

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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.