Home / 638,316.35-957,341.86-188,931.81

Finding the Fourth Proportional to 638,316.35, 957,341.86 and 188,931.81

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Solution

The fourth proportional to 638,316.35, 957,341.86 and 188,931.81 is: 283,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,316.35 : 957,341.86 = 188,931.81 : x
  2. Step 2: Convert to fraction form
    638,316.35/957,341.86 = 188,931.81/x
  3. Step 3: Cross multiply
    638,316.35x = 957,341.86 × 188,931.81
  4. Step 4: Simplify right side
    638,316.35x = 180,872,330,398.57
  5. Step 5: Solve for x
    x = 180,872,330,398.57/638,316.35
  6. Step 6: Final answer
    x = 283,358.45

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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.