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Finding the Fourth Proportional to 366,934.90, 550,402.35 and 260,646.70

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Solution

The fourth proportional to 366,934.90, 550,402.35 and 260,646.70 is: 390,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,934.90 : 550,402.35 = 260,646.70 : x
  2. Step 2: Convert to fraction form
    366,934.90/550,402.35 = 260,646.70/x
  3. Step 3: Cross multiply
    366,934.90x = 550,402.35 × 260,646.70
  4. Step 4: Simplify right side
    366,934.90x = 143,460,556,199.75
  5. Step 5: Solve for x
    x = 143,460,556,199.75/366,934.90
  6. Step 6: Final answer
    x = 390,970.05

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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.