Home / 289,547.04-434,377.76-139,891.36

Finding the Fourth Proportional to 289,547.04, 434,377.76 and 139,891.36

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Solution

The fourth proportional to 289,547.04, 434,377.76 and 139,891.36 is: 209,864.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,547.04 : 434,377.76 = 139,891.36 : x
  2. Step 2: Convert to fraction form
    289,547.04/434,377.76 = 139,891.36/x
  3. Step 3: Cross multiply
    289,547.04x = 434,377.76 × 139,891.36
  4. Step 4: Simplify right side
    289,547.04x = 60,765,695,600.15
  5. Step 5: Solve for x
    x = 60,765,695,600.15/289,547.04
  6. Step 6: Final answer
    x = 209,864.68

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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.