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Finding the Fourth Proportional to 452,143, 623,986.50 and 250,939

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Solution

The fourth proportional to 452,143, 623,986.50 and 250,939 is: 346,312.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,143 : 623,986.50 = 250,939 : x
  2. Step 2: Convert to fraction form
    452,143/623,986.50 = 250,939/x
  3. Step 3: Cross multiply
    452,143x = 623,986.50 × 250,939
  4. Step 4: Simplify right side
    452,143x = 156,582,548,323.50
  5. Step 5: Solve for x
    x = 156,582,548,323.50/452,143
  6. Step 6: Final answer
    x = 346,312.00

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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.