Home / 371,345.08-512,468.40-210,196.70

Finding the Fourth Proportional to 371,345.08, 512,468.40 and 210,196.70

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Solution

The fourth proportional to 371,345.08, 512,468.40 and 210,196.70 is: 290,078.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,345.08 : 512,468.40 = 210,196.70 : x
  2. Step 2: Convert to fraction form
    371,345.08/512,468.40 = 210,196.70/x
  3. Step 3: Cross multiply
    371,345.08x = 512,468.40 × 210,196.70
  4. Step 4: Simplify right side
    371,345.08x = 107,719,166,534.28
  5. Step 5: Solve for x
    x = 107,719,166,534.28/371,345.08
  6. Step 6: Final answer
    x = 290,078.35

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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.