Home / 371,790.60-513,077.40-210,641.64

Finding the Fourth Proportional to 371,790.60, 513,077.40 and 210,641.64

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Solution

The fourth proportional to 371,790.60, 513,077.40 and 210,641.64 is: 290,689.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,790.60 : 513,077.40 = 210,641.64 : x
  2. Step 2: Convert to fraction form
    371,790.60/513,077.40 = 210,641.64/x
  3. Step 3: Cross multiply
    371,790.60x = 513,077.40 × 210,641.64
  4. Step 4: Simplify right side
    371,790.60x = 108,075,464,982.94
  5. Step 5: Solve for x
    x = 108,075,464,982.94/371,790.60
  6. Step 6: Final answer
    x = 290,689.07

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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.