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Finding the Fourth Proportional to 371,841.16, 513,140.58 and 202,075.30

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Solution

The fourth proportional to 371,841.16, 513,140.58 and 202,075.30 is: 278,863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,841.16 : 513,140.58 = 202,075.30 : x
  2. Step 2: Convert to fraction form
    371,841.16/513,140.58 = 202,075.30/x
  3. Step 3: Cross multiply
    371,841.16x = 513,140.58 × 202,075.30
  4. Step 4: Simplify right side
    371,841.16x = 103,693,036,645.67
  5. Step 5: Solve for x
    x = 103,693,036,645.67/371,841.16
  6. Step 6: Final answer
    x = 278,863.79

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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.