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Finding the Fourth Proportional to 260,003.80, 390,048.90 and 102,237.40

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Solution

The fourth proportional to 260,003.80, 390,048.90 and 102,237.40 is: 153,373.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,003.80 : 390,048.90 = 102,237.40 : x
  2. Step 2: Convert to fraction form
    260,003.80/390,048.90 = 102,237.40/x
  3. Step 3: Cross multiply
    260,003.80x = 390,048.90 × 102,237.40
  4. Step 4: Simplify right side
    260,003.80x = 39,877,585,408.86
  5. Step 5: Solve for x
    x = 39,877,585,408.86/260,003.80
  6. Step 6: Final answer
    x = 153,373.09

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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.