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Finding the Fourth Proportional to 371,559.55, 512,783.80 and 210,443.26

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Solution

The fourth proportional to 371,559.55, 512,783.80 and 210,443.26 is: 290,429.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,559.55 : 512,783.80 = 210,443.26 : x
  2. Step 2: Convert to fraction form
    371,559.55/512,783.80 = 210,443.26/x
  3. Step 3: Cross multiply
    371,559.55x = 512,783.80 × 210,443.26
  4. Step 4: Simplify right side
    371,559.55x = 107,911,894,547.19
  5. Step 5: Solve for x
    x = 107,911,894,547.19/371,559.55
  6. Step 6: Final answer
    x = 290,429.61

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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.