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Finding the Fourth Proportional to 461,390.40, 692,085.60 and 162,208.80

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Solution

The fourth proportional to 461,390.40, 692,085.60 and 162,208.80 is: 243,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,390.40 : 692,085.60 = 162,208.80 : x
  2. Step 2: Convert to fraction form
    461,390.40/692,085.60 = 162,208.80/x
  3. Step 3: Cross multiply
    461,390.40x = 692,085.60 × 162,208.80
  4. Step 4: Simplify right side
    461,390.40x = 112,262,374,673.28
  5. Step 5: Solve for x
    x = 112,262,374,673.28/461,390.40
  6. Step 6: Final answer
    x = 243,313.20

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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.