Home / 289,585.40-434,421.30-102,582.20

Finding the Fourth Proportional to 289,585.40, 434,421.30 and 102,582.20

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Solution

The fourth proportional to 289,585.40, 434,421.30 and 102,582.20 is: 153,888.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,585.40 : 434,421.30 = 102,582.20 : x
  2. Step 2: Convert to fraction form
    289,585.40/434,421.30 = 102,582.20/x
  3. Step 3: Cross multiply
    289,585.40x = 434,421.30 × 102,582.20
  4. Step 4: Simplify right side
    289,585.40x = 44,563,892,680.86
  5. Step 5: Solve for x
    x = 44,563,892,680.86/289,585.40
  6. Step 6: Final answer
    x = 153,888.60

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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.