Home / 260,140.01-390,235.98-70,603.42

Finding the Fourth Proportional to 260,140.01, 390,235.98 and 70,603.42

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Solution

The fourth proportional to 260,140.01, 390,235.98 and 70,603.42 is: 105,912.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,140.01 : 390,235.98 = 70,603.42 : x
  2. Step 2: Convert to fraction form
    260,140.01/390,235.98 = 70,603.42/x
  3. Step 3: Cross multiply
    260,140.01x = 390,235.98 × 70,603.42
  4. Step 4: Simplify right side
    260,140.01x = 27,551,995,516.31
  5. Step 5: Solve for x
    x = 27,551,995,516.31/260,140.01
  6. Step 6: Final answer
    x = 105,912.18

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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.