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Finding the Fourth Proportional to 425,547.48, 638,252.10 and 200,907.48

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Solution

The fourth proportional to 425,547.48, 638,252.10 and 200,907.48 is: 301,328.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,547.48 : 638,252.10 = 200,907.48 : x
  2. Step 2: Convert to fraction form
    425,547.48/638,252.10 = 200,907.48/x
  3. Step 3: Cross multiply
    425,547.48x = 638,252.10 × 200,907.48
  4. Step 4: Simplify right side
    425,547.48x = 128,229,621,015.71
  5. Step 5: Solve for x
    x = 128,229,621,015.71/425,547.48
  6. Step 6: Final answer
    x = 301,328.59

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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.