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Finding the Fourth Proportional to 286,362.40, 395,211.45 and 163,866.10

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Solution

The fourth proportional to 286,362.40, 395,211.45 and 163,866.10 is: 226,153.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,362.40 : 395,211.45 = 163,866.10 : x
  2. Step 2: Convert to fraction form
    286,362.40/395,211.45 = 163,866.10/x
  3. Step 3: Cross multiply
    286,362.40x = 395,211.45 × 163,866.10
  4. Step 4: Simplify right side
    286,362.40x = 64,761,758,167.51
  5. Step 5: Solve for x
    x = 64,761,758,167.51/286,362.40
  6. Step 6: Final answer
    x = 226,153.15

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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.