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Finding the Fourth Proportional to 292,613.78, 403,802.16 and 163,555.28

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Solution

The fourth proportional to 292,613.78, 403,802.16 and 163,555.28 is: 225,703.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,613.78 : 403,802.16 = 163,555.28 : x
  2. Step 2: Convert to fraction form
    292,613.78/403,802.16 = 163,555.28/x
  3. Step 3: Cross multiply
    292,613.78x = 403,802.16 × 163,555.28
  4. Step 4: Simplify right side
    292,613.78x = 66,043,975,343.40
  5. Step 5: Solve for x
    x = 66,043,975,343.40/292,613.78
  6. Step 6: Final answer
    x = 225,703.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.