Home / 260,180.24-390,401.58-102,521.84

Finding the Fourth Proportional to 260,180.24, 390,401.58 and 102,521.84

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Solution

The fourth proportional to 260,180.24, 390,401.58 and 102,521.84 is: 153,834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,180.24 : 390,401.58 = 102,521.84 : x
  2. Step 2: Convert to fraction form
    260,180.24/390,401.58 = 102,521.84/x
  3. Step 3: Cross multiply
    260,180.24x = 390,401.58 × 102,521.84
  4. Step 4: Simplify right side
    260,180.24x = 40,024,688,320.51
  5. Step 5: Solve for x
    x = 40,024,688,320.51/260,180.24
  6. Step 6: Final answer
    x = 153,834.47

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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.