Home / 292,815.40-439,244.70-105,802.60

Finding the Fourth Proportional to 292,815.40, 439,244.70 and 105,802.60

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Solution

The fourth proportional to 292,815.40, 439,244.70 and 105,802.60 is: 158,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,815.40 : 439,244.70 = 105,802.60 : x
  2. Step 2: Convert to fraction form
    292,815.40/439,244.70 = 105,802.60/x
  3. Step 3: Cross multiply
    292,815.40x = 439,244.70 × 105,802.60
  4. Step 4: Simplify right side
    292,815.40x = 46,473,231,296.22
  5. Step 5: Solve for x
    x = 46,473,231,296.22/292,815.40
  6. Step 6: Final answer
    x = 158,711.70

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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.