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Finding the Fourth Proportional to 292,915.28, 439,416.64 and 105,970.48

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Solution

The fourth proportional to 292,915.28, 439,416.64 and 105,970.48 is: 158,971.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,915.28 : 439,416.64 = 105,970.48 : x
  2. Step 2: Convert to fraction form
    292,915.28/439,416.64 = 105,970.48/x
  3. Step 3: Cross multiply
    292,915.28x = 439,416.64 × 105,970.48
  4. Step 4: Simplify right side
    292,915.28x = 46,565,192,260.79
  5. Step 5: Solve for x
    x = 46,565,192,260.79/292,915.28
  6. Step 6: Final answer
    x = 158,971.54

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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.