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Finding the Fourth Proportional to 292,511.64, 438,767.43 and 70,895.64

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Solution

The fourth proportional to 292,511.64, 438,767.43 and 70,895.64 is: 106,343.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,511.64 : 438,767.43 = 70,895.64 : x
  2. Step 2: Convert to fraction form
    292,511.64/438,767.43 = 70,895.64/x
  3. Step 3: Cross multiply
    292,511.64x = 438,767.43 × 70,895.64
  4. Step 4: Simplify right side
    292,511.64x = 31,106,697,761.01
  5. Step 5: Solve for x
    x = 31,106,697,761.01/292,511.64
  6. Step 6: Final answer
    x = 106,343.45

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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.