Home / 371,985.08-513,303.41-208,648.04

Finding the Fourth Proportional to 371,985.08, 513,303.41 and 208,648.04

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Solution

The fourth proportional to 371,985.08, 513,303.41 and 208,648.04 is: 287,914.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,985.08 : 513,303.41 = 208,648.04 : x
  2. Step 2: Convert to fraction form
    371,985.08/513,303.41 = 208,648.04/x
  3. Step 3: Cross multiply
    371,985.08x = 513,303.41 × 208,648.04
  4. Step 4: Simplify right side
    371,985.08x = 107,099,748,376.92
  5. Step 5: Solve for x
    x = 107,099,748,376.92/371,985.08
  6. Step 6: Final answer
    x = 287,914.10

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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.