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Finding the Fourth Proportional to 286,752.48, 430,100.91 and 87,074.60

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Solution

The fourth proportional to 286,752.48, 430,100.91 and 87,074.60 is: 130,603.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,752.48 : 430,100.91 = 87,074.60 : x
  2. Step 2: Convert to fraction form
    286,752.48/430,100.91 = 87,074.60/x
  3. Step 3: Cross multiply
    286,752.48x = 430,100.91 × 87,074.60
  4. Step 4: Simplify right side
    286,752.48x = 37,450,862,547.38
  5. Step 5: Solve for x
    x = 37,450,862,547.38/286,752.48
  6. Step 6: Final answer
    x = 130,603.45

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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.