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Finding the Fourth Proportional to 450,051.80, 674,969.70 and 260,101.40

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Solution

The fourth proportional to 450,051.80, 674,969.70 and 260,101.40 is: 390,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,051.80 : 674,969.70 = 260,101.40 : x
  2. Step 2: Convert to fraction form
    450,051.80/674,969.70 = 260,101.40/x
  3. Step 3: Cross multiply
    450,051.80x = 674,969.70 × 260,101.40
  4. Step 4: Simplify right side
    450,051.80x = 175,560,563,927.58
  5. Step 5: Solve for x
    x = 175,560,563,927.58/450,051.80
  6. Step 6: Final answer
    x = 390,089.68

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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.