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Finding the Fourth Proportional to 384,725.98, 530,646.48 and 270,030.21

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Solution

The fourth proportional to 384,725.98, 530,646.48 and 270,030.21 is: 372,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,725.98 : 530,646.48 = 270,030.21 : x
  2. Step 2: Convert to fraction form
    384,725.98/530,646.48 = 270,030.21/x
  3. Step 3: Cross multiply
    384,725.98x = 530,646.48 × 270,030.21
  4. Step 4: Simplify right side
    384,725.98x = 143,290,578,440.24
  5. Step 5: Solve for x
    x = 143,290,578,440.24/384,725.98
  6. Step 6: Final answer
    x = 372,448.41

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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.