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Finding the Fourth Proportional to 260,044.30, 390,066.45 and 260,044.30

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Solution

The fourth proportional to 260,044.30, 390,066.45 and 260,044.30 is: 390,066.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,044.30 : 390,066.45 = 260,044.30 : x
  2. Step 2: Convert to fraction form
    260,044.30/390,066.45 = 260,044.30/x
  3. Step 3: Cross multiply
    260,044.30x = 390,066.45 × 260,044.30
  4. Step 4: Simplify right side
    260,044.30x = 101,434,556,943.74
  5. Step 5: Solve for x
    x = 101,434,556,943.74/260,044.30
  6. Step 6: Final answer
    x = 390,066.45

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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.