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Finding the Fourth Proportional to 215,483.70, 297,364.64 and 118,685.68

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Solution

The fourth proportional to 215,483.70, 297,364.64 and 118,685.68 is: 163,784.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,483.70 : 297,364.64 = 118,685.68 : x
  2. Step 2: Convert to fraction form
    215,483.70/297,364.64 = 118,685.68/x
  3. Step 3: Cross multiply
    215,483.70x = 297,364.64 × 118,685.68
  4. Step 4: Simplify right side
    215,483.70x = 35,292,924,506.36
  5. Step 5: Solve for x
    x = 35,292,924,506.36/215,483.70
  6. Step 6: Final answer
    x = 163,784.66

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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.