Home / 354,050.12-488,365.90-210,703.16

Finding the Fourth Proportional to 354,050.12, 488,365.90 and 210,703.16

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Solution

The fourth proportional to 354,050.12, 488,365.90 and 210,703.16 is: 290,637.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,050.12 : 488,365.90 = 210,703.16 : x
  2. Step 2: Convert to fraction form
    354,050.12/488,365.90 = 210,703.16/x
  3. Step 3: Cross multiply
    354,050.12x = 488,365.90 × 210,703.16
  4. Step 4: Simplify right side
    354,050.12x = 102,900,238,366.24
  5. Step 5: Solve for x
    x = 102,900,238,366.24/354,050.12
  6. Step 6: Final answer
    x = 290,637.49

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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.