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Finding the Fourth Proportional to 371,187.79, 512,240.51 and 201,421.91

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Solution

The fourth proportional to 371,187.79, 512,240.51 and 201,421.91 is: 277,962.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,187.79 : 512,240.51 = 201,421.91 : x
  2. Step 2: Convert to fraction form
    371,187.79/512,240.51 = 201,421.91/x
  3. Step 3: Cross multiply
    371,187.79x = 512,240.51 × 201,421.91
  4. Step 4: Simplify right side
    371,187.79x = 103,176,461,903.57
  5. Step 5: Solve for x
    x = 103,176,461,903.57/371,187.79
  6. Step 6: Final answer
    x = 277,962.97

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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.