Home / 346,217.80-519,326.70-287,120.20

Finding the Fourth Proportional to 346,217.80, 519,326.70 and 287,120.20

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Solution

The fourth proportional to 346,217.80, 519,326.70 and 287,120.20 is: 430,680.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,217.80 : 519,326.70 = 287,120.20 : x
  2. Step 2: Convert to fraction form
    346,217.80/519,326.70 = 287,120.20/x
  3. Step 3: Cross multiply
    346,217.80x = 519,326.70 × 287,120.20
  4. Step 4: Simplify right side
    346,217.80x = 149,109,185,969.34
  5. Step 5: Solve for x
    x = 149,109,185,969.34/346,217.80
  6. Step 6: Final answer
    x = 430,680.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.