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Finding the Fourth Proportional to 291,444.40, 402,185.41 and 164,117.26

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Solution

The fourth proportional to 291,444.40, 402,185.41 and 164,117.26 is: 226,477.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,444.40 : 402,185.41 = 164,117.26 : x
  2. Step 2: Convert to fraction form
    291,444.40/402,185.41 = 164,117.26/x
  3. Step 3: Cross multiply
    291,444.40x = 402,185.41 × 164,117.26
  4. Step 4: Simplify right side
    291,444.40x = 66,005,567,501.18
  5. Step 5: Solve for x
    x = 66,005,567,501.18/291,444.40
  6. Step 6: Final answer
    x = 226,477.39

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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.