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Finding the Fourth Proportional to 210,203.66, 290,090.51 and 118,354.58

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Solution

The fourth proportional to 210,203.66, 290,090.51 and 118,354.58 is: 163,334.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,203.66 : 290,090.51 = 118,354.58 : x
  2. Step 2: Convert to fraction form
    210,203.66/290,090.51 = 118,354.58/x
  3. Step 3: Cross multiply
    210,203.66x = 290,090.51 × 118,354.58
  4. Step 4: Simplify right side
    210,203.66x = 34,333,538,430.81
  5. Step 5: Solve for x
    x = 34,333,538,430.81/210,203.66
  6. Step 6: Final answer
    x = 163,334.64

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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.