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Finding the Fourth Proportional to 260,547.69, 390,315.83 and 192,034.68

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Solution

The fourth proportional to 260,547.69, 390,315.83 and 192,034.68 is: 287,679.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,547.69 : 390,315.83 = 192,034.68 : x
  2. Step 2: Convert to fraction form
    260,547.69/390,315.83 = 192,034.68/x
  3. Step 3: Cross multiply
    260,547.69x = 390,315.83 × 192,034.68
  4. Step 4: Simplify right side
    260,547.69x = 74,954,173,561.41
  5. Step 5: Solve for x
    x = 74,954,173,561.41/260,547.69
  6. Step 6: Final answer
    x = 287,679.29

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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.